DISCRETE CHOICE AND RATIONAL INATTENTION: A GENERAL EQUIVALENCE RESULT

Mogens Fosgerau*, Emerson Melo, Andre De Palma, Matthew Shum

*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

29 Citationer (Scopus)
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Abstract

This article establishes a general equivalence between discrete choice and rational inattention models. Matějka and McKay (2015) showed that when information costs are modeled using the Shannon entropy, the choice probabilities in the rational inattention (RI) model take the multinomial logit form. We show that, for one given prior over states, RI choice probabilities may take the form of any additive random utility discrete choice model (ARUM) when the information cost is a Bregman information, a class defined in this article. The prior information of the rationally inattentive agent is summarized in a constant vector of utilities in the corresponding ARUM.
OriginalsprogEngelsk
TidsskriftInternational Economic Review
Vol/bind61
Udgave nummer4
Sider (fra-til)1569-1589
ISSN0020-6598
DOI
StatusUdgivet - 16 jun. 2020

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